EP 2393194 A1 20111207 - DEVICE, METHOD OF VOLTAGE CONVERSION AND POWER SUPPLY SYSTEM
Title (en)
DEVICE, METHOD OF VOLTAGE CONVERSION AND POWER SUPPLY SYSTEM
Title (de)
VORRICHTUNG UND VERFAHREN ZUR SPANNUNGSUMWANDLUNG SOWIE NETZTEILSYSTEM DAMIT
Title (fr)
DISPOSITIF ET PROCÉDÉ DE CONVERSION DE TENSION, AINSI QUE SYSTÈME D'ALIMENTATION ÉLECTRIQUE
Publication
Application
Priority
- CN 2010078125 W 20101026
- CN 201010142326 A 20100401
Abstract (en)
A voltage transforming device is provided, which includes: a first voltage transforming module, configured to perform a pre-stage voltage transformation on an input direct current (DC) voltage to output an isolated DC voltage, in which the pre-stage voltage transformation includes a primary transformation that converts the input DC voltage to a to-be-transformed alternating current (AC) voltage, a working period of the primary transformation includes a first half period and a second half period, and a dead time exists when a first half period and a second half period are switched between each other; a capacitor filtering module, configured to perform capacitor filtering compensation on the isolated DC voltage in the dead time to output a stable intermediate DC voltage; and a second voltage transforming module, configured to perform at least two separate post-stage voltage transformations on the intermediate DC voltage to output DC voltages required by at least two loads. A voltage transforming method and a power supply system are also provided. Thereby, the decoupling of the pre-stage and post-stage working modes is achieved, and the interference caused by voltage transformation is reduced.
IPC 8 full level
H02M 3/335 (2006.01)
CPC (source: EP)
H02M 3/1584 (2013.01); H02M 3/33561 (2013.01); H02M 1/007 (2021.05); H02M 3/33592 (2013.01); Y02B 70/10 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2393194 A1 20111207; EP 2393194 A4 20131225; CN 101800476 A 20100811; WO 2011120299 A1 20111006
DOCDB simple family (application)
EP 10790865 A 20101026; CN 2010078125 W 20101026; CN 201010142326 A 20100401